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net/ixgbe: support NIC reset

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Reset a NIC by calling dev_uninit and then dev_init.
Go through same way in NIC PCI remove without release of
ethdev resource and then NIC PCI probe function without
ethdev resource allocation.

Signed-off-by: Wei Dai <wei.dai@intel.com>
This commit is contained in:
Wei Dai 2017-07-23 17:15:10 +08:00 committed by Thomas Monjalon
parent 514302ff6e
commit 03b92b70da
1 changed files with 48 additions and 1 deletions
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49
drivers/net/ixgbe/ixgbe_ethdev.c
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@ -169,6 +169,7 @@ static void ixgbe_dev_stop(struct rte_eth_dev *dev);
static int ixgbe_dev_set_link_up(struct rte_eth_dev *dev);
static int ixgbe_dev_set_link_down(struct rte_eth_dev *dev);
static void ixgbe_dev_close(struct rte_eth_dev *dev);
static int ixgbe_dev_reset(struct rte_eth_dev *dev);
static void ixgbe_dev_promiscuous_enable(struct rte_eth_dev *dev);
static void ixgbe_dev_promiscuous_disable(struct rte_eth_dev *dev);
static void ixgbe_dev_allmulticast_enable(struct rte_eth_dev *dev);
@ -265,6 +266,7 @@ static int ixgbevf_dev_link_update(struct rte_eth_dev *dev,
int wait_to_complete);
static void ixgbevf_dev_stop(struct rte_eth_dev *dev);
static void ixgbevf_dev_close(struct rte_eth_dev *dev);
static int ixgbevf_dev_reset(struct rte_eth_dev *dev);
static void ixgbevf_intr_disable(struct ixgbe_hw *hw);
static void ixgbevf_intr_enable(struct ixgbe_hw *hw);
static void ixgbevf_dev_stats_get(struct rte_eth_dev *dev,
@ -518,6 +520,7 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = {
.dev_set_link_up = ixgbe_dev_set_link_up,
.dev_set_link_down = ixgbe_dev_set_link_down,
.dev_close = ixgbe_dev_close,
.dev_reset = ixgbe_dev_reset,
.promiscuous_enable = ixgbe_dev_promiscuous_enable,
.promiscuous_disable = ixgbe_dev_promiscuous_disable,
.allmulticast_enable = ixgbe_dev_allmulticast_enable,
@ -608,6 +611,7 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = {
.xstats_reset = ixgbevf_dev_stats_reset,
.xstats_get_names = ixgbevf_dev_xstats_get_names,
.dev_close = ixgbevf_dev_close,
.dev_reset = ixgbevf_dev_reset,
.allmulticast_enable = ixgbevf_dev_allmulticast_enable,
.allmulticast_disable = ixgbevf_dev_allmulticast_disable,
.dev_infos_get = ixgbevf_dev_info_get,
@ -2842,7 +2846,7 @@ ixgbe_dev_set_link_down(struct rte_eth_dev *dev)
}
/*
* Reest and stop device.
* Reset and stop device.
*/
static void
ixgbe_dev_close(struct rte_eth_dev *dev)
@ -2865,6 +2869,32 @@ ixgbe_dev_close(struct rte_eth_dev *dev)
ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
}
/*
* Reset PF device.
*/
static int
ixgbe_dev_reset(struct rte_eth_dev *dev)
{
int ret;
/* When a DPDK PMD PF begin to reset PF port, it should notify all
* its VF to make them align with it. The detailed notification
* mechanism is PMD specific. As to ixgbe PF, it is rather complex.
* To avoid unexpected behavior in VF, currently reset of PF with
* SR-IOV activation is not supported. It might be supported later.
*/
if (dev->data->sriov.active)
return -ENOTSUP;
ret = eth_ixgbe_dev_uninit(dev);
if (ret)
return ret;
ret = eth_ixgbe_dev_init(dev);
return ret;
}
static void
ixgbe_read_stats_registers(struct ixgbe_hw *hw,
struct ixgbe_hw_stats *hw_stats,
@ -5078,6 +5108,23 @@ ixgbevf_dev_close(struct rte_eth_dev *dev)
ixgbevf_remove_mac_addr(dev, 0);
}
/*
* Reset VF device
*/
static int
ixgbevf_dev_reset(struct rte_eth_dev *dev)
{
int ret;
ret = eth_ixgbevf_dev_uninit(dev);
if (ret)
return ret;
ret = eth_ixgbevf_dev_init(dev);
return ret;
}
static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev, bool on)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);